On the episode where Monica gets her wedding dress, in the beginning she picks one out at an expensive store so she can buy it at a discount store. When she goes to the discount store, she buys a different dress than the one she picked out. Then, when they show Monica, Phoebe, and Rachel admiring the dress at Monica's apartment, it is the same dress she picked out in the beginning. I love Friends, but somebody should have caught this one!

What about the fact that there is NO WAY that Monica and the girl she was fighting for the dress would be ABLE to wear the same size dress? Monica is a size Zero and that other girl was definitely bigger!

Yes the two dresses were completely different. The one she first picks up, and then wears later at home, has small silky like straps. But the one at the discount store has large, ruffle straps that are also shaped completely different. So it doesn't matter what sizes the dresses were in, they were different anyways.

ahh! I'm so glad somebody else noticed this! It bugs me everytime I watch this episode!! The dresses are COMPLETELY different. The one she picks out in the discount shop resembles Rachel's wedding dress from her wedding with Barry, with a lacy bodice and straps. Where as the wedding that Monica tries on in the wedding dress shop, and also the one she is trying on at home is not lacey, and it has almost halter type straps. Very different from the previous one.